// 📦 引入工具库
const _ = require("lodash");
const path = require("path");
const fs = require("fs");

// 📦 ESM 支持模块加载
const esm = require("esm");
const requireModule = esm(module);

// 📦 项目依赖模块
const { readAllValues } = requireModule(
  "../../../awakened-potential/helpers/readAllValues.js"
);
const checkAccuracy = requireModule("../../utils/checkAccuracy.js");

// ✅ 读取历史开奖数据（模拟全部）
const allValues = readAllValues("m");

// ✅ 号码池（01 ~ 49）
const allNumbers = Array.from({ length: 49 }, (_, i) =>
  (i + 1).toString().padStart(2, "0")
);

// ✅ 是否使用窗口
const useWindow = true;
// ✅ 窗口大小
const windowSize = 5;
// ✅ 存储预测结果
const predictResults = [];
let correct = 0;
let maxWrongStreak = 0;
let currentWrongStreak = 0;

/**
 * ✨ 冷却回归策略（选出最近一段时间未出现的 32 个号码）
 */
const select32ByCoolingReturn = (temp) => {
  const lastSeenMap = {}; // 记录每个号码上次出现的“距今期数”
  const currentIndex = temp.length;

  // 初始化为窗口最大值（假设最长未出现）
  allNumbers.forEach((n) => (lastSeenMap[n] = currentIndex));

  // 倒序查找最近出现期
  for (let i = temp.length - 1; i >= 0; i--) {
    const num = temp[i].number;
    if (lastSeenMap[num] === currentIndex) {
      lastSeenMap[num] = currentIndex - i;
    }
  }

  // 得分高表示“更久未出现”
  const sorted = Object.entries(lastSeenMap)
    .sort((a, b) => b[1] - a[1] || a[0].localeCompare(b[0]))
    .map(([num]) => num)
    .slice(0, 32);

  if (sorted.length !== 32) {
    throw new Error(`❗ 无法生成 32 个不重复号码（目前只有 ${sorted.length} 个）`);
  }

  return sorted;
};

// ✅ 主循环
allValues.forEach((item, index) => {
  const temp = useWindow
    ? allValues.slice(Math.max(0, index - windowSize), index)
    : allValues.slice(0, index);

  if (temp.length === 0) return;

  const selectedNumbers = select32ByCoolingReturn(temp);

  if (selectedNumbers.length !== 32) {
    throw new Error("选出的32个号码数量不正确");
  }

  try {
    const isHit = checkAccuracy(selectedNumbers, item.number);
    if (isHit) {
      correct += 1;
      currentWrongStreak = 0;
    } else {
      currentWrongStreak += 1;
      maxWrongStreak = Math.max(maxWrongStreak, currentWrongStreak);
    }
    predictResults.push(selectedNumbers);
  } catch (err) {
    console.error(`❌ checkAccuracy error at index ${index}: ${err.message}`);
  }
});

// ✅ 输出统计结果
const total = predictResults.length;
const accuracy = total > 0 ? ((correct / total) * 100).toFixed(2) : 0;

console.log(`预测总数: ${total}`);
console.log(`命中次数: ${correct}`);
console.log(`准确率: ${accuracy}%`);
console.log(`最大连续错误次数: ${maxWrongStreak}`);
